/Engine/Source/Runtime/Engine/Classes/Engine/StreamableManager.h
Synchronously load a set of assets, and return a handle. This can be very slow and may stall the game thread for several seconds.
[TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FStreamableHandle](API\Runtime\Engine\Engine\FStreamableHandle) > RequestSyncLoad ( [TArray](API\Runtime\Core\Containers\TArray)< [FSoftObjectPath](API\Runtime\CoreUObject\UObject\FSoftObjectPath) > TargetsToStream, bool bManageActiveHandle, [FString](API\Runtime\Core\Containers\FString) DebugName )